Culture means the way people live. It includes your job, your activities, what you belive in, what language you speak, and the style of your arts.
"Custom" means the way of living that people practice regularly (traditions, beliefs, arts, etc). I’m a Christian who has a normal life and celebrates Three Kings Day, January 6: the day the three kings came to Jesus and gave him presents. We celebrate it in honor of Jesus, his birthday, and the three kings that came. Three kings day is not a holiday celebrated in the USA. It is celebrated in Puerto Rico and other Spanish countries.
Artifacts are objecst made by people in the past. I made a necklace and I will give it to my future child, because it’s special to me. And she will pass it on to her daughter, and she will pass it on to her daughter, etc. Also, when I was three years old, my aunt gave me a necklace that has a big S on it. And a few years later, my mom gave me a little oval- shaped locket that I added to my necklace and now I treasure it in my jewelry box.
A value is a special idea or thought that you feel is the most important in life. For example, I value honesty, and I believe in not hating, but in being friendly with people who are different than I.